function FileValidatorTest::testFileValidateImageResolution

This ensures the resolution of a specific file is within bounds. The image will be resized if it's too large.

File

modules/simpletest/tests/file.test, line 420

Class

FileValidatorTest

This will run tests against the file validation functions (file_validate_*).

Code

function testFileValidateImageResolution() {
    // Non-images.
    $errors = file_validate_image_resolution($this->non_image);
    $this->assertEqual(count($errors), 0, 'Should not get any errors for a non-image file.', 'File');
    $errors = file_validate_image_resolution($this->non_image, '50x50', '100x100');
    $this->assertEqual(count($errors), 0, 'Do not check the resolution on non files.', 'File');
    // Minimum size.
    $errors = file_validate_image_resolution($this->image);
    $this->assertEqual(count($errors), 0, 'No errors for an image when there is no minimum or maximum resolution.', 'File');
    $errors = file_validate_image_resolution($this->image, 0, '200x1');
    $this->assertEqual(count($errors), 1, 'Got an error for an image that was not wide enough.', 'File');
    $errors = file_validate_image_resolution($this->image, 0, '1x200');
    $this->assertEqual(count($errors), 1, 'Got an error for an image that was not tall enough.', 'File');
    $errors = file_validate_image_resolution($this->image, 0, '200x200');
    $this->assertEqual(count($errors), 1, 'Small images report an error.', 'File');
    // Maximum size.
    if (image_get_toolkit()) {
        // Copy the image so that the original doesn't get resized.
        copy('misc/druplicon.png', 'temporary://druplicon.png');
        $this->image->uri = 'temporary://druplicon.png';
        $errors = file_validate_image_resolution($this->image, '10x5');
        $this->assertEqual(count($errors), 0, 'No errors should be reported when an oversized image can be scaled down.', 'File');
        $info = image_get_info($this->image->uri);
        $this->assertTrue($info['width'] <= 10, 'Image scaled to correct width.', 'File');
        $this->assertTrue($info['height'] <= 5, 'Image scaled to correct height.', 'File');
        drupal_unlink('temporary://druplicon.png');
    }
    else {
        // TODO: should check that the error is returned if no toolkit is available.
        $errors = file_validate_image_resolution($this->image, '5x10');
        $this->assertEqual(count($errors), 1, 'Oversize images that cannot be scaled get an error.', 'File');
    }
}